Shoe upper



FIG. 1 is a left side view of a shoe upper showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a rear view thereof.

The dotted line showing of a shoe sole in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 